Setting up RAID-1 mirror as aliased boot device on V240

Question

Hi Guys,
I've successfully mirrored 4 slices from the original disk
to the second one in our v240, the raid as such works,
and is consistent. I then did the following:
<div class="pre"><pre>installboot /usr/platform/`uname -i`/lib/fs/ufs/bootblk /dev/rdsk/c1t1d0s0init 0devalias disk_mirror /pci@1c,600000/scsi@2/sd@1,0:aboot disk_mirror</pre></div>
But on reboot the machine complained that it couldn't
find the kernel ...
What did I do wrong?
Cheers,
Andrej

Answer 1

<table border="0" align="center" width="90%" cellpadding="3" cellspacing="1"><tr><td class="SmallText"><b>m-lennon wrote on Fri, 02 December 2005 07:45</b></td></tr><tr><td class="quote">
Very amusing comment Michael!
</td></tr></table>
Actually I think he just didn't believe me when I said
that I have SUCCESSFULLY mirrored 4 slices (/, /var swap
and /adv). Yes, I did use metastat to check on the
process, and yes, after a couple of hours even the
largest slice (/adv) was successfully mirrored.
<table border="0" align="center" width="90%" cellpadding="3" cellspacing="1"><tr><td class="SmallText"><b>m-lennon wrote on Fri, 02 December 2005 07:45</b></td></tr><tr><td class="quote">
One of the things that can be confusing when moving from Linux on PC to Solaris on SPARC systems is the obp, far more robust than BIOS! I have found that this puts Linux administrators off using SPARC systems, but these systems aren't that complicated if you understand how to use them ( entry level systems at least ). A good place to start is http://docs.sun.com/ and BigAdmin. As Michael suggested the man pages are an excellent source for quick information. Any time I work on a Linux system I use the man pages all the time because the GNU commands can be different. In fact during exams like the RHCE you are allowed to use the man pages to help you answer the problems/questions. Can you tell us if you have followed a procedure or guide when you set up your root mirror?
</td></tr></table>
I followed the general outline as it was given to me
in the course SA-299 ...
<table border="0" align="center" width="90%" cellpadding="3" cellspacing="1"><tr><td class="SmallText"><b>m-lennon wrote on Fri, 02 December 2005 07:45</b></td></tr><tr><td class="quote">
Have you searched the forum for any references, I have posted to a thread outlining the steps to take to configure a root mirror some time ago:
http://supportforum.sun.com/hardware/index.php?t=msg&got o=17942&rid=3131&SQ=c7d34a55da48e884a4ea26ddaf162731
I think it is difficult to try and provide this information through the forum, as you can see in this thread it was far from straight forward! If you want to outline more about your current configuration, I can try to give you some pointers.
</td></tr></table>
The mirroring wasn't the problem. I suppose I didn't quite
understand Michaels question; I assumed that he wants me
to check if the files are present on the mirror, which is what
I have no clue how to do; as in looking at it as if it were a
stand-alone HDD.
However: The mirroring wasn't the problem, the attempt to
boot (to verify that I'll have a working system if disk 1 dies)
of the secondary side of the mirror was ...
Cheers,
Andrej